Jun Chang, P.E., D.WRE

General Manager

The Board of Directors of the North Harris County Regional Water Authority appointed Jun Chang as the Authority’s General Manager on January 1, 2021. Jun served as the Authority’s Deputy General Manager since October 2016.

Prior to joining the Authority, Jun had more than 27 years of Civil Engineering experience with the City of Houston. Formerly the Deputy Director of Public Works & Engineering Department for the City of Houston, Jun was responsible for the operation and maintenance of the City of Houston’s regional water and wastewater utility systems.

Jun has B.S. (1985) and M.S. (1987) degrees in Civil Engineering from the University of Houston, and is a Registered Professional Engineer in the State of Texas and a Diplomat of American Academy of Water Resources Engineers. He serves on the Board of Directors of the Texas Water Conservation Association.

Jimmie Schindewolf, P.E.

Senior Advisor to the General Manager

Jimmie has previously served as the Authority General Manager from January 6, 2003 through December 31, 2020. He is now serving as the Senior Advisor to the General Manager. Schindewolf is a professional engineer with a background in construction, engineering, and management.

Prior to joining the Authority, Schindewolf wrapped up his duties as the Project Director for his Owner’s Representative team at Reliant Stadium – home of the Houston Texans and the Houston Livestock Show & Rodeo. This landmark project was completed on time and within budget. Schindewolf also served in a similar role for another high profile project – Minute Maid Park — home of the Houston Astros. This award-winning project was also completed on time and within budget.

Prior to this private sector stint, Schindewolf spent most of the 1990’s serving Mayor Bob Lanier in a dual capacity – as Chief of Staff and Director of the Public Works and Engineering Department. He provided oversight and was responsible for all infrastructure related activities. He also functioned as liaison for a variety of key Houston and Harris County agencies and departments. As head of the Public Works and Engineering Department, Schindewolf was responsible for managing an annual operating and maintenance budget of $700 million, an annual Capital Improvement Program budget of $600 million, and a workforce of approximately 5,000 employees. During his tenure with the Department, he was selected as Houston Area Engineer of the Year in 1994, and was also the first recipient of the American Public Works Association Charles Swearingen Award for distinguished service to the public works profession.

Before Mayor Lanier tapped Schindewolf for key positions in his administration, Schindewolf co-owned a successful road paving and utility construction company for nine years.

From 1977 to 1983, Schindewolf served as Public Works Director for Mayor Fred Hofheinz, Mayor Jim McConn and Mayor Kathy Whitmire. In 1983 he was selected as one of the Three Top Public Works Officials in the State of Texas. This honor was followed by one of the highlights of his career…selection as one of the Top Ten Public Works Officials in the United States.

Schindewolf is a past President of the Houston Engineering and Scientific Society. He is a member of the Texas Society of Professional Engineers. He was active in the Associated General Contractors and was President-Elect of the Houston Contractors Association at the time he joined Mayor Lanier.

He began his engineering career with the Texas Highway Department. He then worked for the Harris County Engineering Department for five years as a design engineer, subdivision engineer, and Assistant County Engineer.

Jimmie received a B.S. in Civil Engineering from the University of Houston in 1967. He was honored by his alma mater as the recipient of the 1992 Distinguished Engineering Alumni Award. He is also a graduate of Klein High School. The Klein School District honored the Schindewolf family by dedicating an Intermediate School in their name.

Mark Evans

Planning and Governmental Affairs Director

Mark Evans is the Planning & Governmental Affairs Director for the North Harris County Regional Water Authority. As the Authority’s Planning & Governmental Affairs Director, he assists the General Manager in interfacing with numerous state and local agencies and entities. Mark coordinates the Authority’s Reuse Incentive Program and GIS Program. He also oversees the Authority’s Legislative Program and in coordination and consultation with the Authority’s Legislative Consultant, develops the Program and monitors the Texas Legislature in session and during the interim.

Evans is the Chairman of the Texas Water Development Board’s Region H Water Planning Group. He was appointed as a member of the Region H Water Planning Group at its creation in 1997 and was elected Vice Chairman of the group and served in that capacity until 2009 when he became Chairman. In January 2020, he was appointed to TWDB’s Interregional Planning Council and chaired the Council’s Committee on Planning Water Resources for the State as a Whole. He was reappointed in July of 2o22 to the Planning Council. He also serves on the Board of Directors of the Texas Water Conservation Association.

He is a sixth generation Texan and earned his Bachelor of Business Administration degree at Sam Houston State University. He began his government service with a 9-year tenure as a Field Appraiser with the Texas General Land Office. Elected as Trinity County Judge in 1995, he served four terms in office and retired as County Judge in 2010. While County Judge, Evans held leadership positions in numerous professional and governmental associations, including President of the County Judges & Commissioners Association of Texas and Chairman of the Forest Counties Payment Committee, an influential Congressional Advisory Committee.

Showri Nandagiri, P.E.

Design Manager

Showri Nandagiri, who is serving as Engineering Coordinator for the North Harris County Regional Water Authority, retired from the City of Houston, Department of Public Works and Engineering, as City Engineer. Showri worked for the City for more than 25 years and is highly regarded and widely recognized as one of the premier engineering professionals in the potable water field. Showri, a resident of Sugar Land, has his Bachelor’s degree in Civil Engineering from India and has a Master’s degree in Water Resources from the University of Connecticut. After working briefly for Turner, Collie and Braden Inc. in Houston, he joined the City as a graduate engineer in 1978. He held several positions, including Senior Assistant Director for Water Engineering and Construction Division, and Deputy Director for Engineering, Construction and Real Estate Division. He was responsible for managing the Surface Water Transmission Program for the City of Houston for over two decades.

Hamlet Hovsepian, P.E.

Chief Engineer

Hamlet Hovsepian is serving as Chief Engineer for North Harris County Regional Water Authority and currently is the Authority’s onsite representative on the Project Management Team for the Northeast Water Purification Plant Expansion Project. Before joining North Harris County Regional Water Authority, Hamlet worked for the City of Houston for over 31 years as Assistant Director of Water Engineering Section, responsible for design and construction of transmission/distribution systems, groundwater facilities and water purification plants. He graduated from University of Houston with Bachelor of Science in Civil Engineering and is a Registered Professional Engineer in the State of Texas.

Douglas Haude, P.E.

Construction Manager

Doug Haude is serving as Construction Manager for the North Harris County Regional Water Authority (NHCRWA). He has more than 33 years of experience both in the financial and engineering industries with a background in planning, permitting, engineering, and program, project, construction and financial management. Prior to joining NHCRWA, Doug has spent the past eighteen years with AECOM Technical Services and the San Jacinto River Authority (SJRA) where he was primarily focused on two large Groundwater Reduction Programs (GRP) in northern Harris and Montgomery Counties, the NHCRWA and SJRA GRP Programs, respectively.

Doug holds a Bachelor of Science in Civil Engineering from the University of Houston (2002) along with a Bachelor of Business Administration with a major in Accounting from Stephen F. Austin State University (1987) and is a Registered Professional Engineer in the State of Texas. Doug currently serves as a Board Director on the Klein ISD Education Foundation Board. He has previously served on various Boards including past President of the Harris County MUD No. 249, past President of the University of Houston Engineering Alumni Association, as well as previously serving as Assistant Treasurer, Treasurer and Vice President of the American Public Works Association, Southeast Texas Branch.

Lisa Randecker

Executive Assistant

Cyndi Plunkett

Finance Director

Lisa Sagstetter

Communications and Community Relations Manager

Krystal Boggs

Administrative Assistant
GIS Technician

Kibriana Bonner

Administrative Assistant